445766221656222 has 64 divisors (see below), whose sum is σ = 951380451800064. Its totient is φ = 138751647390720.

The previous prime is 445766221656199. The next prime is 445766221656227. The reversal of 445766221656222 is 222656122667544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445766221656227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60423018 + ... + 67397874.

It is an arithmetic number, because the mean of its divisors is an integer number (14865319559376).

Almost surely, 2^{445766221656222} is an apocalyptic number.

445766221656222 is an abundant number, since it is smaller than the sum of its proper divisors (505614230143842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445766221656222 is a wasteful number, since it uses less digits than its factorization.

445766221656222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6979793.

The product of its digits is 116121600, while the sum is 60.

The spelling of 445766221656222 in words is "four hundred forty-five trillion, seven hundred sixty-six billion, two hundred twenty-one million, six hundred fifty-six thousand, two hundred twenty-two".